公开(公告)号：US20190270094A1

公开(公告)日：2019-09-05

申请号：US16367096

申请日：2019-03-27

Applicant: TASSU ESP OY

Inventor： Ari LAITINEN ,  Mika RÄIHÄ ,  Seppo PAAVILAINEN ,  Jorma KESKINEN

IPC: B03C3/12 ,  F23J15/02 ,  B03C3/06 ,  B03C3/38 ,  B03C3/41 ,  B03C3/49 ,  B03C3/74

Abstract: A boiler includes a flow channel having a selected chamber delimited by walls made at least partly of conductive material and being grounded, and a device arranged at least partially inside the selected chamber. The device includes an ion source comprising a corona electrode and an electrically passive body having an opening for corona discharge. The corona electrode is located inside the electrically passive body. A fan/shielding-gas connection is in the electrically passive body. The shielding gas exits the electrically passive body through the opening. The device also includes a high-voltage source for the corona electrode. The walls of the selected chamber of the boiler form a ground potential for the corona electrode to collect the fine particles of flue gases on the walls of the selected chamber.

公开(公告)号：US20190001345A1

公开(公告)日：2019-01-03

申请号：US16021316

申请日：2018-06-28

Applicant: Tassu ESP Oy

Inventor： Ari LAITINEN ,  Heikki SUHONEN ,  Seppo PAAVILAINEN ,  Jorma KESKINEN ,  Juha TIKKANEN

IPC: B03C3/38 ,  B03C3/47 ,  B03C3/41

Abstract: A gas cleaning apparatus includes: an ion source to provide an ion beam, a charging zone to form charged particles by exposing particles of a particle-laden gas to the ion beam, and a filter element to collect the charged particles, wherein the ion source includes a corona electrode to generate ions by a corona discharge, the ion source is arranged to form the corona discharge in a protective gas, and wherein the apparatus is arranged to form the ion beam by using an electric field to draw the generated ions from the corona discharge to the particle-laden gas.